From: Stanislav Malyshev <stas@php.net>
Date: Mon, 26 Sep 2016 04:25:01 +0000 (-0700)
Subject: Fix bug #73150: missing NULL check in dom_document_save_html
X-Git-Tag: php-7.1.0RC4~21^2~32
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d1e878f2726e65502fdd992c5b57feeada57893f;p=php

Fix bug #73150: missing NULL check in dom_document_save_html

(cherry picked from commit 1c0e9126fbfb7fde3173347b7464237f56c38bfa)
---

diff --git a/ext/dom/document.c b/ext/dom/document.c
index 30d9c13ee9..17ac30a991 100644
--- a/ext/dom/document.c
+++ b/ext/dom/document.c
@@ -1663,7 +1663,7 @@ PHP_FUNCTION(dom_document_savexml)
 		if (options & LIBXML_SAVE_NOEMPTYTAG) {
 			xmlSaveNoEmptyTags = saveempty;
 		}
-		if (!size) {
+		if (!size || !mem) {
 			RETURN_FALSE;
 		}
 		RETVAL_STRINGL((char *) mem, size);
@@ -2215,7 +2215,7 @@ PHP_FUNCTION(dom_document_save_html)
 #else
 		htmlDocDumpMemory(docp, &mem, &size);
 #endif
-		if (!size) {
+		if (!size || !mem) {
 			RETVAL_FALSE;
 		} else {
 			RETVAL_STRINGL((const char*) mem, size);